Justin Kaeen Chang, M.D.
Orthopaedic Surgery Physician · Lompoc, CA
Justin Kaeen Chang, M.D. is an orthopaedic surgery physician with a practice address in Lompoc, California, and NPI 1316301526, issued on Apr 13, 2016. Check the license (California A190521, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Justin Kaeen Chang
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A190521 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1225 N H St, Lompoc, CA 93436
- Phone
- (805) 737-8700
- Enumerated
- Apr 13, 2016
- Record last updated
- Oct 10, 2023
- Fax
- (805) 737-8701
- Medicare enrollment
- Enrolled (PECOS I20231129000915); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2016
- Entity
- Type 1 · individual
Also registered at 1225 N H St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Babak Baradar-Bokaie, MDInternal Medicine Physician1225083876
- Robin Barnes, MSN, RN, FNP-CGeneral Practice Physician1629529557
- Olesya Brissey, M.D.Internal Medicine Physician1891192969
- Vanessa ConnorsPhysician Assistant1396528907
- Kyle Dickinson, PA-CPhysician Assistant1689140535
- Kathleen Dupont, PA-CPhysician Assistant1235448283
Verify Justin Kaeen Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A190521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
167 Medicare Part D claims for 58 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 48 claims were for opioids.
Most prescribed
- Meloxicam52 claims
- Oxycodone Hcl31 claims
- Celecoxib24 claims
- Ondansetron Hcl14 claims
- Tramadol Hcl13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,257.21
19 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Lompoc Valley Medical CenterLompoc, CA · Acute Care Hospitals1 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
Other orthopaedic surgery physician records in California
- Karim Abdollahi, M.D.Laguna Beach, CA1942240403
- Michael Abdulian, MDGlendale, CA1649469628
- Hussein Abdulrassoul, MDRiverside, CA1972123891
- Douglas Abeles, MDCastro Valley, CA1508961582
- Anthony Abene, MDSan Jose, CA1457437964
- Torgom Abraamyan, M.D.Van Nuys, CA1013370410
- Monther AbuhantashSan Francisco, CA1447041512
- Joshua Acebo, MDPalo Alto, CA1396373734
- Daniel Acevedo, M.D.Thousand Oaks, CA1184856122
- John Adams, MDLos Angeles, CA1215914114
Common questions
What is Justin Kaeen Chang, M.D.'s NPI number?
Justin Kaeen Chang, M.D.'s National Provider Identifier (NPI) is 1316301526, issued on Apr 13, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Justin Kaeen Chang, M.D. located?
The NPPES record lists a practice address at 1225 N H St, Lompoc, CA, 93436. Phone: (805) 737-8700. Providers update this record themselves, so call before visiting.
How can I verify Justin Kaeen Chang, M.D.'s license?
NPPES lists California license number A190521, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Justin Kaeen Chang, M.D. prescribe under Medicare Part D?
In 2024, Justin Kaeen Chang, M.D. had 167 Medicare Part D claims for 58 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.